Carburetor attachment



May 8, 1923.

J. W. BROWN CARBURETOR ATTACHMENT Filed Dec. 24, 1920 Patented May 8, 1923.

JOHN W. BROWN, FORT WAYNE, INDIANA.

CABBURETOB ATTACHMENT.

Application filed December 24, 1920. Serial No. 432,891.

To all whom it may 00mm:

Be it known that I, JOHN W. BROWN, a citizen of the United States of America, and resident of Fort Wayne, in the county of Allen and State of Indiana, have invented certain new and useful Improvements in Carburetor Attachments, of which the following is a specification.

This invention relates to improvements in carburetor attachments for hydrocarbon engines and the objects thereof are; first, to provide a trap adapted to be positioned be tween the carburetor and the intake pipe of the engine constructed so as to receive and detain any condensations or liquid fuel that may collect in the intake pipe and tend to drain back in the carburetor; and second, to introduce heated air into the trap in amanner so as to vaporize the liquid content of the trap and cause it to pass into the intake pipe and intermix with the fuel assing from the carburetor through the inta e pipe to the engine.

The objects of the improvement are accomplished by the construction illustrated in the accompanying drawings in which:

Fig. 1 is a side elevation showing an assembly of a carburetor, intake pipe and exhaust manifold of usual construction, and including the invention arranged in connection therewith, there being parts cut away and in section; v

Fig. 2 is a front end view of the trap, shown partly broken away and in section;

' and Fig. 3 is an elevation of Fig. 1 showing a central section thereof in a lane at right angles thereto.

Similar characters of reference indicate corresponding parts throughout the several views and referring now to the same:

1 is a block having a central opening 2 extending therethrough, and having in its lower portion a cavity 3 which has communication with the opening 2 through a series of perforations 4, there being a' depression V5 in the block extending transversely in its wall at the lower side of the o ening 2 coincident with the upper ends 0 the perforations 4. The block has also a threaded open ing 6 in its bottom communicating with the cavity 3, and into the opening is secured a pipe elbow 7 having connection with an air pipe 8 hereinafter referred to.

The block 1 is secured in position between the carburetor 9 at its outlet port and the intake pipe.

that the valve may be manipulated by the operator from the drivers seat.

The carburetor 9 herein shown has a throtr."

tle valve 14 in its outlet port by which the supply of fuel from the carburetor to the engine is regulated in the usual manner, the carburetor being of any suitable type.

In the operation of the invention any liquid, fuel that may become deposited by condensation or otherwise within the intake pipe and. tend to pass back toward the carburetor will drain through. the perforations 4 into the cavity 3 instead of entering-the carburetor and causing it to. become flooded. Usually in startingthe engine while it is cold, the fuel .drawn from the carburetor through the intake pipe to the engine tends to condense and accumulate therein, causing difliculty during the initial operation ofthe engine. However, by use of the present invention the condensed fuel drains from the I intake pipe into the trap, thus relieving the engine of becoming choked by an overcharge of liquid in the fuel mixture. When i the engine is in operation the air pipe 8 becomes heated through contact' with the exhaust manifold of the engine, and, as air is admitted into the pipe 8 through the valve 12 it becomes heated in itspassage therethrough and enters the cavity 3 causing the liquid fuel-which had previously drained thereinto to vaporize and pass through the perforations 4 into the opening 2 in the block 1 so that it becomes mixed with the fuel passing from the carburetor into the The hot air thus admitted through the trap into the path of the fuel entering the engine has the effect, of 'expel m5 ling the content of the trap as we 1 as tending to vaporize any liquid in the fuel passingfrom the carburetor to the engine and thus enhancing the explosiveness of the fuel.

A further advantage of the invention, as pecially when applied to anautomobile, is

tially adjusted to insure the admission of that with its use the carburetor may be iniample gasoline as will aid in starting the en gine, and after which the fuel may be reduced to a proper consistency for higher engine velocities by the admission of additional air into the fuel mixture, the regulation of which is accomplished by the operator from the drivers seat. In this manner the fuel admitted to the engine may be readily proportioned in its contents of air and gasoline, as various operating conditions may require, to attain its maximum efficiency.

What I claim is 1. In an attachment for a hydrocarbon engine including a carburetor and intake pipe; a trap adapted to .be positioned between the carburetor and intake pipe, said trap having a fuel opening extending there through from the carburetor to the-intake pipe, there being also a cavity formed in the trap and a series of perforations leading from the cavity into said opening; and

masses means for the admission of air into the cavity.

2. In an attachment for a hydrocarbon engine including a carburetor and intake pipe, a trap adapted to be positioned between the carburetor and intake pipe, said trap having an opening extending therethrough for the passage of fuel from the carburetor into the intake pipe, there being a transverse depression continuous with the opening at the lower portion thereof, there being also a cavity formed in the trap beneath said depression, and a series of perforations afi'ording communication between the cavity and depression, said cavity having an inlet opening for the admission of air.

In testimony whereof i afiix my signature, in presence of two Witnesses.

JOHN W. BROWN.

Witnesses:

MATILDA ME'ITLER, W. BURNS. 

